JP6848258B2 - Roll processing equipment - Google Patents

Description

The present invention relates to a roll processing apparatus having a forming roll and an anvil roll provided so as to face the forming roll, and forming a continuous film-shaped or sheet-shaped workpiece.

Conventionally, a sheet processing method for three-dimensionally forming a continuous film-shaped workpiece such as a pouch is known.
For example, in a packaging pouch made of a laminated synthetic resin film, it is required to differentiate the product and increase the commercial value by arranging various patterns and patterns together with characters such as a product name. .. In order to satisfy such demands, printed characters, patterns, patterns and the like are three-dimensionally molded to make them stand out. In addition, in the packaging pouch, the contents are sealed and packaged, and the spouts used by transferring to another container are extended to both outer sides by three-dimensional molding to secure a flow path, so that the transfer is easy. In the three-dimensional molding of such a packaging pouch, the overhanging portion is formed by hot press molding on each of the two laminated synthetic resin films to be laminated one above the other, and then cooled to the outside. The overhanging portions are overlapped to form a spout, and Patent Document 1 discloses a technique characterized in that a laminated film is preheated, press-molded, and simultaneously cooled in a mold. Document 2 discloses a technique characterized in that a plastic film is heated and then molded while being cooled.

However, the means for heating and molding requires a time required for heating and a time required for cooling, and there is a problem that the processing speed is limited and high-speed processing is difficult.
In addition, the two laminated synthetic resin films must be three-dimensionally molded and then laminated and the surroundings must be heat-sealed to complete the packaging pouch. In addition to this, there is a problem that a deviation occurs due to processing elongation due to press molding, and there is a problem that only an overhang portion smaller than the size of the spout can be formed in order to provide a margin in which the deviation is expected.

In order to solve these problems, the applicant coldly compression-molds a laminated synthetic resin film in which at least a soft inner film on the innermost surface and a high-strength outer film on the outer surface side are laminated in the thickness direction. We have proposed a three-dimensional molding method in which the compression molding portion is projected toward the outer surface side (see Patent Document 3).
According to this method, there is no need for heating or cooling, energy such as electric power required for processing can be significantly reduced, processing time can be shortened, high-speed processing can be performed, and two laminated synthetic resin films that are laminated can be used. Even if there is, the compression molding portion can be projected toward the outer surface side, and three-dimensional molding can be easily performed.

Japanese Unexamined Patent Publication No. 2000-343603 Japanese Unexamined Patent Publication No. 2001-18996 Japanese Unexamined Patent Publication No. 2014-046655

When the cold three-dimensional molding known in Patent Document 3 is continuously performed, a molding roll having a processing mold member that comes into contact with a film-shaped or sheet-shaped workpiece is used. When molding is performed using the above, the forming roll and the anvil roll facing the forming roll may be deformed by the load.
In this case, the distance between the processed member of the molding roll and the anvil roll changes, and there is a risk that the film-shaped or sheet-shaped workpiece may be damaged or molding may not be performed well.

The present invention solves the above-mentioned problems, prevents damage to a continuous film-shaped or sheet-shaped workpiece, and enables stable molding to improve work efficiency. It is an object of the present invention to provide a roll processing apparatus that can be improved.

The roll processing apparatus according to the present invention is a processing apparatus for a workpiece having a forming roll and an anvil roll provided so as to face the forming roll, and the forming roll abuts on the workpiece. has a mold member, a cylindrical bearer part is provided in the axial direction end sides of the forming roll, the forming roll and the anvil roll is configured to abut with the bearer part, and above the bearer part, A pair of backup rolls are provided so as to sandwich the lower portions of both ends of the anvil roll, and an adjustment mechanism capable of finely adjusting the height individually and independently is provided corresponding to the backup rolls below. By doing so, the above-mentioned problem is solved.

According to the roll processing apparatus according to claim 1, cylindrical bearer portions are provided on at least one axial end side of the forming roll or the anvil roll, and the forming roll and the anvil roll come into contact with each other at the bearer portion. Since the distance between the machined member of the molding roll and the anvil roll is uniform and the change due to the load can be suppressed, damage to the workpiece can be prevented and stable molding can be performed. It is possible to improve efficiency.
In addition, since there is little vibration during molding and the molding load can be reduced, the equipment can be miniaturized.

Further, by providing bearer portions at both ends of the forming roll and providing a pair of backup rolls so as to sandwich the upper part of the bearer portion and the lower part of both ends of the anvil roll, the forming roll and the anvil due to the load are provided. Widening of the roll interval is prevented, damage to the workpiece can be prevented more reliably, and stable molding can be performed.
Further, the height can be finely adjusted by the adjusting mechanism, and the adjustment at the time of exchanging the processed member due to product change or wear can be easily performed, and the work efficiency can be further improved.
According to the second aspect of the present invention, the intermediate support roll is sandwiched from above and below at positions facing the upper side of the intermediate gap portion in the axial direction of the molding roll and the lower portion of the intermediate portion in the axial direction of the anvil roll. By providing a backup roll, it is possible to prevent the spread of the interval due to the bending of the middle part of the forming roll and anvil roll due to the load, further prevent damage to the workpiece, and perform stable forming. It can be carried out.

According to the third aspect of the present invention, by having a heating mechanism for heating the workpiece upstream from the forming roll, the forming load is reduced, the formability is improved, and the three-dimensional forming portion formed by compression is formed. It is possible to reduce the amount of change in the molding height under high temperature conditions.
According to the fourth aspect of the present invention, by providing the cooling mechanism on the roll at a position where the influence of heat is large, the temperature of the roll can be kept constant, so that the influence of the molding load and the heat by the heating mechanism can be maintained. This prevents the distance between the processed member of the forming roll and the anvil roll from changing, and enables stable forming of the workpiece.

The schematic front view of the roll processing apparatus which concerns on one Embodiment of this invention. The perspective explanatory view of the roll processing apparatus of FIG. Partially enlarged cut view of FIG. The schematic front view of the roll processing apparatus which concerns on another embodiment of this invention.

As shown in FIGS. 1 to 3, the roll processing apparatus 100 according to the embodiment of the present invention includes a forming roll 110 capable of fixing a processing die member 111 having a compression portion 112 at the central portion in the axial direction, and a forming roll 110. Anvil roll 120 provided so as to face each other, and a feed unit (not shown) that supplies, for example, a continuous film-shaped or sheet-shaped workpiece F between the forming roll 110 and the anvil roll 120. have.
In the present embodiment, the forming roll 110 has two axial intermediate regions to which the processing mold member 111 can be fixed, and cylindrical bearer portions 114 on both ends in the axial direction.
The cylindrical bearer portion 114 preferably has a diameter larger than or the same diameter as the outer diameter of the fixed processed mold member 111, and a slightly larger diameter.

The forming roll 110 is provided with a processing mold member 111 so as to form the workpiece F in two rows in the axial direction, and an intermediate gap portion in the central portion in the axial direction in which the processing mold member 111 does not exist over the entire circumference. Has 115.
In the present embodiment, the processing mold member 111 is designed to be fixed in two regions in the axial direction, two in the circumferential direction, for a total of four pieces, but the required processing width and processing length can be obtained. Therefore, the number of regions in the axial direction and the number of sheets in the circumferential direction can be appropriately designed.
Further, although the bearer portions 114 are arranged on both ends in the axial direction of the forming roll 110, they may be located at the center of the roll or the like depending on the length and diameter of the forming roll 110 as long as the work piece F such as a film does not pass through. May be arranged.

Then, in a state where the bearer portions 114 on both ends in the axial direction of the forming roll 110 are in contact with the anvil roll 120, the workpiece F is formed into the shape of the compression portion 112 by the compression portion 112 and the anvil roll 120 of the processing mold member 111. It is configured to be compressed and three-dimensionally molded.
With this configuration, the distance between the machined member 111 and the anvil roll 120 is uniform, the machined member 111 hits the work piece F uniformly, and the change due to the load can be suppressed. It is possible to prevent damage to F and perform stable molding, and it is possible to improve work efficiency.
In addition, since there is little vibration during molding and the molding load can be reduced, it is possible to reduce the size of the equipment.
In the present embodiment, the bearer portions 114 are provided on both ends in the axial direction of the forming roll 110, but both ends in the axial direction of the anvil roll 120 or both ends in the axial direction of both the forming roll 110 and the anvil roll 120. Bearer portions 114 may be provided in each of the above.
However, usually, the forming roll is moved up and down with respect to the anvil roll fixedly mounted by an air cylinder or the like, and the forming roll is easily adjusted in the distance between the processed member 111 of the forming roll 110 and the anvil roll 120. It is preferable to provide bearer portions 114 on both ends in the axial direction of 110.
Then, if necessary, the processing mold member 111 of the molding roll 110 is adjusted, and the distance from the anvil roll 120 is also adjusted.

Further, in order to prevent the forming roll 110 from being lifted or deformed and the anvil roll 120 from being deformed, the upper part of the bearer portions 114 at both ends of the forming roll 110 and the lower part of both ends of the anvil roll 120 are sandwiched from above and below, respectively. A pair of backup rolls 130 is provided.
Further, in order to prevent the intermediate portion of the forming roll 110 and the anvil roll 120 from bending, a backup roll 130 is also provided below the intermediate portion in the axial direction of the anvil roll 120, and the forming roll 110 at the opposite position is provided in the axial direction. An intermediate support roll 132 is provided above the intermediate gap portion 115 provided in the intermediate portion.
This makes it possible to further suppress changes due to load.
Further, in the present embodiment, the height of the backup roll 130 below the anvil roll 120 can be finely adjusted by the adjusting mechanism 140, and it is easy to make adjustments when the machined member 111 is replaced due to product change or wear. Therefore, it is possible to further improve the work efficiency.

Further, as in the roll processing apparatus 100b shown in FIG. 4, the bearer portion 114 may also be provided in the intermediate portion of the molding roll 110b, so that the bearer portion 114 also comes into contact with the anvil roll 120 in the intermediate portion. Further, the change due to the load can be suppressed, and stable molding can be performed.
Further, in order to reduce the molding load, improve the moldability, and reduce the amount of change in the molding height of the three-dimensional molded portion formed by compression under high temperature conditions, a heating unit for heating the film (not shown) is formed into a molding roll. It may be provided upstream from 110.
In addition, the temperature of the molding roll 110 and the anvil roll 120 is kept constant by suppressing the change in the distance between the processing mold member 111 of the molding roll 110 and the anvil roll 120 due to the influence of the molding load and the heat of the heating mechanism, and stable molding is performed. To do this, a cooling mechanism 150 may be provided, as shown in FIG.
In this embodiment, the molding roll 110 and the anvil roll 120 are provided with the cooling mechanism 150, but all the rolls including the backup roll 130 and the intermediate support roll 132 are provided with the cooling mechanism. Alternatively, the cooling mechanism may be provided only on a part of all the rolls of the forming roll 110, the anvil roll 120, the backup roll 130 and the intermediate support roll 132, which are particularly concerned about the influence of heat.

An operation of performing three-dimensional processing of a predetermined shape on a continuous film-shaped or sheet-shaped workpiece F by the roll processing device 100 configured as described above will be described.
The continuous workpiece F is supplied between the forming roll 110 and the anvil roll 120 by the feed unit, and when the compression portion 112 of the processing die member 111 faces the anvil roll 120, three-dimensional processing having a predetermined shape is performed. Is given.
The control unit determines the rotation speed of the forming roll 110 so that when the compression portion 112 of the forming roll 110 does not face the anvil roll 120, the compression portion 112 accurately reaches the next machining portion of the workpiece F. And control the drive speed of the feed unit.

A detection means for reading a printed pattern or mark on the surface of the workpiece F to detect the position is provided upstream of the forming roll 110, preferably in the vicinity of the upstream, and a control unit is provided based on the detection signal of the detection means. Operates to perform three-dimensional processing on the workpiece F at an accurate position.
The anvil roll 120 rotates in synchronization with the forming roll 110 by a gear or the like, but the rotation may be separately controlled by a control unit.
Further, the feed unit may have any mechanism such as two rollers that sandwich the workpiece F from above and below.
Further, the detection means may be any one that optically reads the printed pattern or the mark, and may be any one that comes into physical contact, or that uses ultrasonic waves, infrared rays, electromagnetic waves, or the like.

In the operation of performing three-dimensional processing by compression on a continuous work piece F, first, the rotation direction of the molding roll 110 and the drive direction of the feed unit are synchronized, and the work piece F is supplied and three-dimensional work is performed by the compression unit 112. Will be done.
When the workpiece F is three-dimensionally processed by the compression unit 112, the expansion of the distance between the forming roll 110 and the anvil roll 120 due to the load is prevented by the backup roll 130 described above, and the forming roll 110 and the anvil roll 120 are also prevented from expanding. The expansion of the interval due to the bending of the intermediate portion of 120 is prevented by the intermediate support roll 132 described above.

Next, when the compression unit 112 reaches a position not facing the anvil roll 120, the drive of the feed unit is stopped.
During this period, the forming roll 110 continues to rotate in the same direction, but the printed pattern or mark on the surface of the workpiece F is read by the detecting means until the next compression portion 112 faces the anvil roll 120. The position is detected, and the drive of the feed unit is controlled so that the compression unit 112 accurately hits the position to be machined next to the work piece F, and the work piece F is sent again in the supply direction.

In this way, by temporarily stopping the continuous workpiece F, supplying it again, and always performing processing by the compression unit 112 at an accurate position, it is possible to perform three-dimensional processing of a predetermined shape at a predetermined position. ..
The forming roll 110 may be provided with a processing mold member 111 so as to perform three-dimensional processing of the same outer shape or a different outer shape from the workpiece F in three or more rows in the axial direction.
In this case, the backup roll 130 is provided at a position below the intermediate gap portion 115 in the axial direction of the anvil roll 120, and the intermediate support roll 132 described above is provided with the machining mold member 111 in the axial direction of the molding roll 110. It is provided so as to be sandwiched above the intermediate gap portion 115 which is not provided.

The roll processing apparatus of the present invention performs a predetermined three-dimensional processing by compression on a continuous film-shaped or sheet-shaped workpiece, and is suitable for manufacturing, for example, a pouch made of a resin film. Any processing using a molding roll and an anvil roll can be applied, and the work piece may be applied to any material such as metal foil, paper material, and metal plate. It can be used for various things.

100 ・ ・ ・ Roll processing device 110 ・ ・ ・ Molding roll 111 ・ ・ ・ Processing mold member 112 ・ ・ ・ Compression part 114 ・ ・ ・ Bearer part 115 ・ ・ ・ Intermediate gap part 120 ・ ・ ・ Anvil roll 130 ・ ・ ・ Backup Roll 132 ・ ・ ・ Intermediate support roll 140 ・ ・ ・ Adjustment mechanism 150 ・ ・ ・ Cooling mechanism F ・ ・ ・ Work piece

Claims (5)

A roll processing apparatus having a forming roll and an anvil roll provided so as to face the forming roll.
The molding roll has a processing mold member that comes into contact with the workpiece, and has a processing mold member.
Cylindrical bearer part is provided in the axial direction end sides of the forming roll,
The molding roll and the anvil roll are configured to come into contact with each other at the bearer portion.
A pair of backup rolls are provided so as to sandwich the upper part of the bearer portion and the lower portion of both ends of the anvil roll.
A roll processing apparatus characterized in that an adjustment mechanism capable of finely adjusting the height independently is provided corresponding to the backup roll below. An intermediate support roll is provided above the intermediate gap in the axial direction of the molding roll.
The roll processing apparatus according to claim 1 , wherein a backup roll is provided at a position facing the intermediate support roll below the intermediate portion in the axial direction of the anvil roll. The roll processing apparatus according to claim 1 or 2 , further comprising a heating mechanism for heating an workpiece upstream of the molding roll. The roll processing apparatus according to any one of claims 1 to 3 , wherein some rolls or all rolls among all the rolls have a cooling mechanism. A detection means provided near the upstream of the molding roll to detect the position by reading a printed pattern or mark on the surface of the work piece, and three-dimensional processing on the work piece at an accurate position based on the detection signal of the detection means. The roll processing apparatus according to any one of claims 1 to 4, further comprising a control unit to be applied.

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